EPMDimensionOverride - Multiple Properties and Members

Hello Experts,

I am having trouble getting an =EPMDimensionOverride formula to work for multiple Properties and Members.  Currently we override our EMPLOYEE Dimension based on the COST_CENTER property.  The Formula is =EPMDimensionOverride("000","EMPLOYEE",A3) where A3 equals COST_CENTER = 1234.  

I want add an additional filter to Exclude a couple members from the GROUP property.  The Members are "Hourly" and "Temp"

I have tried a couple versions including =EPMDimensionOverride("000","EMPLOYEE",A3 & GROUP <> Hourly, Temp) and  =EPMDimensionOverride("000","EMPLOYEE",A3; GROUP <> Hourly, Temp)

Any help is appreciated.

Thanks,

Sean